Intel X25-V in RAID-0: Faster than X25-M G2 for $250?by Anand Lal Shimpi on March 29, 2010 8:59 PM EST
Not to sound like a broken record, but with the exception of OCZ's Vertex LE, not much has changed in the SSD market over the past couple of years. Intel still seems like the safest bet, and these days they're even offering a pretty compelling value.
The 80GB X25-M G2 is finally selling for reasonable prices and earlier this month Intel launched its first value SSD: the X25-V. Priced at $125, the X25-V gives you much of the performance of the X25-M but at a lower cost and capacity point. It's a great way to safely transition to an SSD.
Intel's X25-V uses the same controller as the X25-M G2, but with half the NAND and thus half the channels
For months now you all have been asking me to tackle the topic of RAIDing SSDs. I've been cautious about doing so for a number of reasons:
1) There is currently no way to pass the TRIM instruction to a drive that is a member of a RAID array. Intel's latest RAID drivers allow you to TRIM non-member RAID disks, but not an SSD in a RAID array.
2) Giving up TRIM support means that you need a fairly resilient SSD, one whose performance will not degrade tremendously over time. On the bright side, with the exception of the newer SandForce controllers, I'm not sure we've seen a controller as resilient as Intel's.
A couple of weeks ago I published some early results of Intel's X25-V SSD. But I was holding out on you, I actually had two:
Using the same Intel X58 testbed I've been using for all of my SSD tests, I created a 74.5GB RAID-0 array out of the two drives and quickly ran them through almost all of our benchmarks. At a total cost of $250, a pair of X25-Vs will set you back more than a single 80GB X25-M and you do give up TRIM, but is the performance worth it?
|AnandTech SSD Testbed|
Intel Core i7 965 running at 3.2GHz (Turbo & EIST Disabled)
Intel X58 + Marvell SATA 6Gbps PCIe
Intel 22.214.171.1245 + Intel IMSM 8.9
Qimonda DDR3-1333 4 x 1GB (7-7-7-20)
eVGA GeForce GTX 285
NVIDIA ForceWare 190.38 64-bit
1920 x 1200
Windows 7 x64